from flask import Flask, render_template, request

app = Flask(__name__)

@app.route('/', methods=['GET'])
def home():
    return render_template('home.html')


@app.route('/signin', methods=['GET'])
def signin_form():
    return render_template('form.html')


@app.route('/signin', methods=['POST'])
def signin():
    username = request.form['username']
    password = request.form['password']

    if username == 'admin' and password == 'password':
        return render_template('signin-ok.html', username=username)

    return render_template('form.html',
                           message='Bad username or password',
                           username=username)


if __name__ == '__main__':
    app.run(debug=True)